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Finding the Fourth Proportional to 39,060.81, 58,580.04 and 10,978.92

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Solution

The fourth proportional to 39,060.81, 58,580.04 and 10,978.92 is: 16,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,060.81 : 58,580.04 = 10,978.92 : x
  2. Step 2: Convert to fraction form
    39,060.81/58,580.04 = 10,978.92/x
  3. Step 3: Cross multiply
    39,060.81x = 58,580.04 × 10,978.92
  4. Step 4: Simplify right side
    39,060.81x = 643,145,572.76
  5. Step 5: Solve for x
    x = 643,145,572.76/39,060.81
  6. Step 6: Final answer
    x = 16,465.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.